How to Set up Carbon Filter and Inline Fan in Grow Tent | Different Methods to Install Carbon Filter

There have different methods to set up carbon filter and inline fan.
In general, there are two ways to install carbon filter:
One: filter works as intake filter; In video option 1&2 were set by this method.
Another one: filter works as exhaust filter; In video option 3 was set by this method.
Carbon Filter - store.honguan.com/products/ho...
Grow Tent - hongguanfan.shop/products/ind...